<?php

namespace App\Http\Controllers\Api;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

class Common extends Controller
{

  /**
* CURL请求
* @param $url 请求url地址
* @param $method 请求方法 get post
* @param null $postfields post数据数组
* @param array $headers 请求header信息
* @param bool|false $debug  调试开启 默认false
* @return mixed
*/
public function httpRequest($url, $method, $postfields = null, $headers = array(), $debug = false) {
  $method = strtoupper($method);
  $ci = curl_init();
  /* Curl settings */
  curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
  curl_setopt($ci, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0");
  curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 60); /* 在发起连接前等待的时间，如果设置为0，则无限等待 */
  curl_setopt($ci, CURLOPT_TIMEOUT, 7); /* 设置cURL允许执行的最长秒数 */
  curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
  switch ($method) {
      case "POST":
          curl_setopt($ci, CURLOPT_POST, true);
          if (!empty($postfields)) {
              $tmpdatastr = is_array($postfields) ? http_build_query($postfields) : $postfields;
              curl_setopt($ci, CURLOPT_POSTFIELDS, $tmpdatastr);
          }
          break;
      default:
          curl_setopt($ci, CURLOPT_CUSTOMREQUEST, $method); /* //设置请求方式 */
          break;
  }
  $ssl = preg_match('/^https:\/\//i',$url) ? TRUE : FALSE;
  curl_setopt($ci, CURLOPT_URL, $url);
  if($ssl){
      curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hosts
      curl_setopt($ci, CURLOPT_SSL_VERIFYHOST, FALSE); // 不从证书中检查SSL加密算法是否存在
  }
  //curl_setopt($ci, CURLOPT_HEADER, true); /*启用时会将头文件的信息作为数据流输出*/
  curl_setopt($ci, CURLOPT_FOLLOWLOCATION, 1);
  curl_setopt($ci, CURLOPT_MAXREDIRS, 2);/*指定最多的HTTP重定向的数量，这个选项是和CURLOPT_FOLLOWLOCATION一起使用的*/
  curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
  curl_setopt($ci, CURLINFO_HEADER_OUT, true);
  /*curl_setopt($ci, CURLOPT_COOKIE, $Cookiestr); * *COOKIE带过去** */
  $response = curl_exec($ci);
  $requestinfo = curl_getinfo($ci);
  $http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
  if ($debug) {
      echo "=====post data======\r\n";
      var_dump($postfields);
      echo "=====info===== \r\n";
      print_r($requestinfo);
      echo "=====response=====\r\n";
      print_r($response);
  }
  curl_close($ci);
  return $response;
}

    //检验openId
    public function checkOpenId(Request $request)
    {

      $appid = 'wxaacc4d201a5f3f45';
      $secret = 'b451792bd3cd6b30691589b4d5d630a6';
      $js_code = $request->code;
      $openId = $request->openid;

      $url = 'https://api.weixin.qq.com/sns/jscode2session';
      $data = array(
        'appid' => $appid,
        'secret' => $secret,
        'js_code' => $js_code,
        'grant_type' => 'authorization_code',
      );

      $res = $this-HttpRequest($url,'POST',$data);
      return res;
      //日志检查
      file_put_contents("../log.txt",$res,FILE_APPEND);
      $obj = json_decode($res);//返回数组或者对象
      if($obj->openid == $openId){
        return true;
      }else {
        return false;
      }
    }
}
